Detectives are appealing for information after a man was shot and a second one injured outside a nightclub in Park Royal.
The victims, both aged 22, were at a foam party in the venue in Abbey Road, but had fled the club when the machine started to malfunction.
One man was shot in the leg and the other, who was not shot, suffered head injuries at around 3.10am.
Officers from Operation Trident, the Met’s specialist team that probes gang crime, is investigating the incident.
Anyone with information is asked to contact officers on 0208 358 0051 or Crimestoppers anonymously on 0800 555 111.
The attack is not being linked to a murder in Drayton Road, Harlesden, earlier at 1.20am or a stabbing in Harlesden High Street in the early hours of Saturday morning.
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